The DS family isn´t verry quality my DS Phat and my Dslite broke I wontn be surprised if the same happenes to my 3DS Nintendo is not verry good in making powerful Buttons and D-Pads
Maybe thats a reason why it had sold so manny units nearly everyone I know who has a Ds has his second or even third model because their buttons broke back in the Gameboy era Nintendo did more qualitative products than today